Starter Plugs & Slabs

Commercial-grade Stone Wool Starter Plugs Sourced from High-Grade US-Made Raw Material and Manufactured in North America RedRock Round Propagation Plug PRO - Center Hole - 38mm/40mm - 1-1/2-Inch (Case of 2000) Stone wool grow media manufactured in North America A wetting agent ensures nutrients...

Commercial-Grade Stone Grow Blocks Manufactured from High-Grade US-Made Raw Material RedRock Grow Blocks are stone wool for commercial and industrial cultivators. RedRock Block has been sold to North America's largest farms and cultivators with two things in mind - Crop yield and cost.   Stonewool is sourced and manufactured...

IHORT Q Plug 18/40 1.5” x .75”3,250 square plugs per case Engineered specifically for fast rooting, reliable transplanting, and optimum growth. Q plugs provide more air porosity for better roots and provide more water control than anything else on the market. Stronger roots equal healthier harvests. ...

Grodan® Stonewool A-OK Starter Plugs™ Loose in Carton A- OK Starter Plugs™ for starting seeds and rooting of cuttings prior to plugging into the larger Grodan Gro-Blocks. A-OK Starter Plugs™ come loose in a carton for those who prefer to saturate as individual plugs....

Grodan Improved Hugo (White Foil) 6” x 6” x 5.8” (512 blocks – Loose on Pallet) Grodan ImprovedGrodan partnered with the Wageningen University and Research facility in The Netherlands and top growers throughout North America to identify the optimal stone wool substrate and irrigation...

Commercial-Grade Stone Grow Blocks Manufactured from High-Grade US-Made Raw Material RedRock Grow Blocks are stone wool for commercial and industrial cultivators. RedRock Block has been sold to North America's largest farms and cultivators with two things in mind - Crop yield and cost.   Stonewool is sourced and manufactured...

Commercial-grade Stone Wool Grow Slabs Manufactured from High-Grade US-Made Raw Material RedRock Grow Slab - 36 in. x 6 in. x 3 in. (16/Cs) RedRock Grow Slabs are stone wool for commercial and industrial cultivators. RedRock Block has been sold to North America's largest farms and cultivators with...

Great to support your plants throughout their growth. Use them to tie your plants to stakes, trellis or support wire. Commonly used to help support tomatoes, cucumbers, peppers and any tall plant.

Grodan Improved Jumbo (White Foil) 6” x 6” x 4” (Case of 64) Grodan ImprovedGrodan partnered with the Wageningen University and Research facility in The Netherlands and top growers throughout North America to identify the optimal stone wool substrate and irrigation strategies for specialty...

Grodan Improved Hugo (White Foil) 6” x 6” x 5.8” (Case of 64) Grodan ImprovedGrodan partnered with the Wageningen University and Research facility in The Netherlands and top growers throughout North America to identify the optimal stone wool substrate and irrigation strategies for specialty...

Grodan Improved Gro-BlocksLeverage the benefits of products developed alongside plant scientists, that are specifically engineered to deliver real results for your crops. Grodan Gro-Blocks Improved with Advanced Wetting Technology — Grodan's improved stone wool substrate.Keep it RealReal ScienceGrodan partnered with the Wageningen University and...

Grodan ImprovedUniblock GR40, 8" x 8" x 4"Grodan partnered with the Wageningen University and Research facility in The Netherlands and top growers throughout North America to identify the optimal stone wool substrate and irrigation strategies for specialty crops. The result of months of scientific research...

Grodan Improved GR10 (White Foil) 4” x 4” x 4” (1584 blocks – Loose on Pallet) Grodan ImprovedGrodan partnered with the Wageningen University and Research facility in The Netherlands and top growers throughout North America to identify the optimal stone wool substrate and irrigation...

This loose fill, non-bagged product consists of small stonewool croutons about the size of a fingernail. When you use this potting mix the miniature cubes stack on top of each other and air pockets are created throughout the pot. Growcubes are difficult to overwater...

Grodan Stonewool (rockwool) is made from molten rock spun into cotton candy-like fibers and then compressed into cubes, blocks, or slabs. Where other rockwool brand manufacturers cut all sizes from one batch of wool, Grodan is unique by making different types of fibers. The...

Grodan® Gro-SmartTM Tray Your Grodan Starter plugs, Mini-BlocksTM and Gro-BlocksTM have finally found a home. This durable Dutch tray has double-sided features. Use the 78-cell side to perfectly fit 1.5" A-OK StarterTM plugs or round MacroplugsTM. Use the mesh side for sheets of A-OK's,...

Grodan ImprovedGro Block Improved Mini Block 2" Shrink wrapped/StripGrodan partnered with the Wageningen University and Research facility in The Netherlands and top growers throughout North America to identify the optimal stone wool substrate and irrigation strategies for specialty crops. The result of months of...